Card stripper for jacquard looms



May 2, 1933. T. LEMMIS CARD STRIPPER FOR JACQUARD LOOMS Filed Dec. 9, 1930 Ma i 1' munmmmll AITUENEV Patented May 2, 1933 UNITED STATES PATENT OFFICE.

THOMAS LEMMIS, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR 'IO CROMPTON & KNOWLES LOOM. WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS GARD STRIPPER FOR JACQUARD LOOMS Application filed December 9, 1930. Serial Nor 501,082.

This invention relates to improvements in card strippers for jacquards and it is the general object of the invention to facilitate the assembly and removal of card strippers.

In jacquard mechanisms it is customary to arrange a so-called stripper having fingers which will enter a slot cut transversely of the cylinder so as to lie under the cards. As the cards advance they slide up cam faces extending from the finger toward the stripper support and in this way the cards are dislodged from the guide pins which hold the cards in position as they cooperate with the jacquard needles. As heretofore constructed these strippers have been so made that they had to be assembled when the jacquard was being put together and if a stripper should become broken or so badly bent as to require removal for repair, considerable inconvenience was experienced in taking the stripper out of the jacquard. It is an important object of my present invention to provide the stripper or some support such for instance as a rod and hold the latter removably but normally fixed with respect to the jacquard frame or some part rigid with the latter.

It is another object of my present invention to provide the jacquard with fixed structure having downwardly opening slots which are positioned to receive the stripper rod, the latter being removable without moving the supports and in a direction away from the axis of the jacquard cylinder; Although the downwardly opening slot need not necessarily be radial with respect to the axis of the cylinder, yet such an arrangement is found to be convenient.

With these and other objects in view which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter described and set forth in the claims.

In the accompanying drawing, wherein a convenient embodiment of my invention, is set forth,

Fig. 1 is a side elevation of a portion of a acquard mechanism having my invention applied thereto,

cards designated at 13 and each card when,

in working position is held in position by means of pegs 1d shown in Fig. 2. These pegs pass into guide holes 15 formed on the cards 13 and in this way properly alignthe card with respect to the jacquard needles not slhown and also the perforations in the cylinc er.

The jacquard is rotatably mounted on a shaft 16 which may be held in any approved manner by sliding bars 11, and a hook l7 pivoted about a fixed point 18 co -acts with lugs 19, one for each of the sides of the j acquard, to cause an angular movement of the cylinder when the latter moves away from the pivot 18. It is in this manner that the jacquard is caused to turn on its movable axis so as to present a. new card each pick of the loom, or every other pick, depending upon the type of acquard.

Each end of the cylinder is provided with a groove 20 and that part of the groove near the active face is ordinarily covered by a card. So-called card strippers 21 have spaced lingers 22 and 23 which, as shown in Fig. 1, lie, respectively, above and below the axis of the cylinder.

The matter thus far described is of common construction and operates during the rotation of the cylinders to disengage the card moving away from shed forming position from the cylinder, the purpose being to prevent wrapping of the cards around the cylinder and result in misindication of the cards.

My invention relates more particularly to "the means for mounting the card stripper,

201 the holder screws 33, only one of which is and in carrying my improvements into effect I provide a stripper rod or holder 30 each end of which projects through a slot 31 opening downwardly and away from the axis of the cylinder and formed in an upright stand or support 32 movable with the acquard cylinder. Asshown particularly in Figs. 1

and 3 the slot has diagonally inclined edges which are substantially radial with respect to the axis of the cylinder. Each upright, one of which is shown in the drawing, has a holding screw 33 threaded into the lower portion of an open bearing hub 3a which extends from the upright 32. This groove engages the under side of the rodand forces the same against the upper end of the slot.

My invention is particularly usable when a stripper is'to be applied to or removed from the jacquard. When removing the stripper set forth herein, are loosened until it is possible to remove the rod 30, after which the latter moves downwardly in an inclined di rection along the slot and out of the pocket defined by the slot 31 and away from the axis of the cylinder so that the fingers 22 and 23 can be taken away from the jacquard without removing any other part of the mechanism. After the fingers have either been straightened or replaced the reverse process is followed, the screws 33 being tightened so as to hold the rods in place. The fact that the slot extends in such a direction that the major component of its center line is radial with respect to the cylinder facilitates the operation described.

From the foregoing it will be seen that I have provided a simple device for supporting jacquard card strippers whereby the latter may be quickly removed merely by loosening the screws 33 and that the stripper as a unit comprising the rod and fingers can be taken away from the mechanism for repair. The removal of the stripper is facilitated by reason of the fact that the slot 31 extends generally in a direction away from the axis of the cylinder. The exact direction of the slot or pocket relatively to the cylinder is not important, however, and the spirit of'my invention includesany disposition of the slot which will permit removal of the rod when the screws 33 are withdrawn.

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not wish to be limited to the details hereinjdisclosed, but what I claim is: V

1. In a jacquard having a cylinder rotatable about an axis, stripper fingers to co-act with the cards to dislodge them from the cylinder, a holder for the fingers, and a support having open slots therein, the open ends of which extend away from the axis of the cylinder, the holder and stripper being removable away from the cylinder in the direction of the length of the slot.

2. In a acquard having a rotatable cylinder movable in a direction transverse of its length, a stripper unit to disengage cards from the cylinder, and a support for the unit movable with the cylinder as the axis of the latter moves in said direction transverse of its length, said support having slots which ex tend in a direction away from the cylinder and are open at their outer ends, said unit being normally held in the slots but removable from the latter to take the stripper fingers away from the cylinder.

3. In a jacquard mechanism having a cylinder rotatable about its axis and so mounted as to move in a direction transverse of its axis, a stripper unitto disengage cards from the cylinder, and a member movable with the cylinder when the latter moves in said direction transverse of its axis, said member having a slot extending in a direction away from the axis of the cylinder, that end of the slot near the cylinder being closed and the end having a part to extend into the slot to be held normally therein at the closed end but. removable through the open end.

4. In a jacquard having a rotatable cylinder, card stripping fingers to disengage cards from the cylinder, a rod extending substantially parallel to the axis of the cylinder and supporting the fingers, and a support having a slot extending radially from the axis of the cylinder and open at the end remote from said cylinder, the rod extending into the slot and held normally therein adjacent the end nearer the cylinder but removable from said member through the end of the slot remote from the cylinder.

5. In a jacquard having a rotatable cylinder, a stripper finger to disengage cards from the cylinder, a rod extending substantially parallel'to the cylinder and supporting the stripper finger, a member fixed relatively to the axis of the cylinder and having a slot therein which extends substantially radially from the cylinder, and removable means in the member projectable into the slot, the rod normally being held in that end of the slot adjacent the cylinder by said means and said rod being removable through the end of the slot remote from the cylinder when said means are removed.

In testimony whereof I have hereunto atfixed my signature.

THOMAS LEMMIS. 

